A grid certificate serves as an identifying credential for all grid services, and is comprised of two main components: the certificate and the private key.
OSG no longer provides a service for issuing grid certificates for its users. Instead, you can request a certificate from the InCommon CILogon Silver CA certificate service (https://cilogon.org), and select your institution as an Identity Provider for the service.
In order to properly install some certificates, verify certificates from other grid users, and send encrypted messages and verify digital signatures, you may need to import and activate a certificate authority (CA) chain into your browser, email client, or operating system.
